modelTLine2
Extends from Modelica.Electrical.Analog.Interfaces.TwoPort (Component with two electrical ports, including current), Modelica.Icons.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions).
Information
Lossless transmission line with characteristic impedance Z0, frequency F and normalized length NL The lossless transmission line TLine2 is a two Port. Both port branches consist of a resistor with the value of the characteristic impedance Z0 and a controlled voltage source that takes into consideration the transmission delay. For further details see [Branin1967]. Resistance R' and conductance C' per meter are assumed to be zero. The characteristic impedance Z0 can be derived from inductance and capacitance per length (L' resp. C'), i. e. Z0 = sqrt(L'/C'). The normalized length NL is equal to the length of the line divided by the wavelength corresponding to the frequency F, i. e. the transmission delay TD is the quotient of NL and F.
References: [Branin1967], [Hoefer1985]
Note:
This model is replaced by TLine with appropriate parameterization.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Resistance | Z0 | Characteristic impedance | |
| SI.Frequency | F | Frequency | |
| Real | NL | Normalized length |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| PositivePin | p1 (from FourPin) | Positive electrical pin of port 1 | |
| NegativePin | n1 (from FourPin) | Negative electrical pin of port 1 | |
| PositivePin | p2 (from FourPin) | Positive electrical pin of port 2 | |
| NegativePin | n2 (from FourPin) | Negative electrical pin of port 2 |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Voltage | v1 (from FourPin) | Voltage drop of port 1 (= p1.v - n1.v) | |
| SI.Voltage | v2 (from FourPin) | Voltage drop of port 2 (= p2.v - n2.v) | |
| SI.Current | i1 (from FourPin) | Current flowing from pos. to neg. pin of port 1 | |
| SI.Current | i2 (from FourPin) | Current flowing from pos. to neg. pin of port 2 | |
| SI.Voltage | es | Voltage source of forward travelling wave | |
| SI.Voltage | er | Voltage source of reflected wave |
Revisions
- 1998
- by Joachim Haase initially implemented